baber/WOPTO huggingface dataset:
Patent EP-0251629-B1 (EP)
Inventor: FERGASON JAMES L
IPC: G02F1/133
Filed: 1987-06-22
Granted: 1994-02-23
Abstract: The present invention relates to use of liquid crystal material (30) encapsulated in a containment medium (33) to produce a controlled colored output, for example, in response to the application, removal and variation in an electric field. In one embodiment a non-pleochroic dye (9) is in the containment medium (33) itself and in another embodiment the non-pleochroic dye (9) is in the liquid crystal material (30) itself; and in both cases the dye (9) preferably is fluorescent or a combination of fluorescent and non-fluorescent, and the object is to color light and/or to whiten or to brighten the light emitted out from a display (10) embodying the invention. Incident light (17) impinging on the encapsulated liquid crystal material (30), which is mounted on, in, or with respect to a support medium (12), is isotropically scattered in the absence of an electric field, and using the principle of total internal reflection (or optical interfence or both) a relatively large part of the isotropically scattered light in the support medium (12) is reflected back to illuminate the scattering liquid crystal material (30), which isotropically scatters such light again, thus increasing the optical path through the dyed material (9) and, therefore, the coloring, whitening and/or brightening of the light traveling such increased path. Light scattered back to the viewing direction out of the support medium (12) causes the liquid crystal material (30) to appear relatively bright and colored as compared to the background where there is no liquid crystal material or where the liquid crystal material is in parallel alignment in field-on condition, i.e. aligned with respect to an electric field, and, thus, substantially transmissive.
Patent EP-0257971-B1 (EP)
IPC: H03K3/027
Filed: 1987-08-19
Granted: 1993-09-29
Abstract: A hysteresis circuit is disclosed in which a first signal path, including a hysteresis feedback loop, is separate from a second signal path that is used to carry data. When the signal input to the hysteresis circuit (also referred to hereinafter as the "input signal") crosses a first preselected hysteresis reference (of "threshold") level, the hysteresis feedback loop, which includes threshold adjustments means, will cause a change in the threshold from the first preselected level to a second preselected level. This adjustment of threshold level will take place in parallel with the data being propagated to the output over said separate second signal path. A subsequent crossing of the second preselected threshold level by said input signal will cause the first threshold level to be reset and so on. According to the preferred embodiment of the invention, the threshold adjustment means included in said first signal path further includes a temperature compensation string, current switching means and means which act as an anti-hysteresis killer to speed up the operation of the hysteresis circuit. This novel combination is operative to assure a preselected minimum hysteresis window over the 200 DEG C temperature range between -55 DEG C and 155 DEG C, and renders the hysteresis circuit suitable for use in both military applications and other hostile environments. Furthermore, according to the preferred embodiment of the invention, the hysteresis circuit has a PNP input stage to reduce IIL and acordingly improve the input characteristics of the circuit, particularly fan-in. The circuit also features a low ICC and is designed to be self-compensating with respect to manufacturing disparities inherent in components used to fabricate the circuit itself.
Patent EP-0290513-B1 (EP)
IPC: G01B7/00
Filed: 1987-11-18
Granted: 1991-10-16
Abstract: PCT No. PCT/CH87/00153 Sec. 371 Date Jul. 25, 1988 Sec. 102(e) Date Jul. 25, 1988 PCT Filed Nov. 18, 1987 PCT Pub. No. WO88/04028 PCT Pub. Date Jun. 2, 1988.The method is based on the exploitation of the "skin effect" occuring in any current-conducting material as a function of the current frequency going through said material. A transformer (5) is supplied from a generator (2) and an amplifier (4) to produce the current intended to supply the tube (T) and to measure the voltage at the terminals of a shunt (6). This voltage which is characteristical of the energization current is amplified by an amplifier (8) and brought to the reference input of a phase correlation amplifier (1). The resistive component of the signal on the tube is then measured by said amplifier (1) by just measuring the signal phase component.
Patent EP-0344152-B1 (EP)
IPC: C02F11/131
Filed: 1987-10-29
Granted: 1990-12-19
Abstract: Afin de déshydrater des boues d'eaux usées, on soumet les boues pré-traitées avec un flocculant à une déshydratation préalable à travers des tamis sans fin superposés, avant de les comprimer. Les boues déshydratées au préalable jusqu'à une teneur en matières sèches égale à 20 % environ sont transportées doucement par gravité, sans l'aide de pompes, dans un silo à boues, d'où les boues pré-déshydratées débordent par intermittence et pénètrent dans au moins un filtre-presse chargeable par en haut, où les boues sont déshydratées jusqu'à une teneur en matières sèches d'au moins 50 %. On obtient ainsi un tourteau de boue si dur qu'il peut être fragmenté en morceaux consistants qui ne perdent pas leur forme lorsqu'ils sont entassés et qui ne se défont pas en une masse informe; ils conservent ainsi une surface étendue et constante pendant une étape finale de déshydratation en plein air sur des bandes de déshydratation, ce qui permet d'obtenir une teneur finale en matière sèches comprise entre 90 % et 95 % environ.
Patent EP-0290558-B1 (EP)
IPC: C07D239/48
Filed: 1987-11-30
Granted: 1993-06-16
Abstract: 2,4-Diamino-5-phenylpyrimidines in the form of the free base or an acid addition salt thereof are provided having the structural formula (I):   <IMAGE> I  wherein R1 is an alkoxy, aralkoxy or a mono-substituted or disubstituted amino group, R2 is a nitro group, and R3 is an alkyl group. The compounds act as antifolate agents and are useful for therapeutic treatment, for example as antitumour agents, antipsoriatic agents, antibacterial agents, antitrypanosomal agents and antimalarial agents. Pharmaceutical preparations comprising these compounds for administration to mammals, and methods for preparing the compounds, are disclosed. Particularly useful new compounds, especially for antitumour therapy, have the structural formula IA:   <IMAGE> IA   in which formula IA: n is 1-6; R1 represents hydrogen or alkyl; R4, R5 and R6, which may be identical or different, each represnt hydrogen, alkyl, alkoxy, halo, nitro, perfluoroalkyl, a group of formula -CO2Ra wherein Ra represents hydrogen, alkyl or alkoxyalkyl, or a group of formula -COBRbRc wherein Rb and Rc which may be identical or different each represent alkyl; and R3 represents alkyl.
Patent EP-0294626-B1 (EP)
Inventor: KELLNER HANS-JOERG DR MED
IPC: A61B1/12
Filed: 1988-05-19
Granted: 1993-12-15
Abstract: An endoscope having at least one light conductor, an image conductor and a rinsing channel, whereby the light and the image conductor as well as the rinsing channel open at a tip of an end part at the patient end of the endoscope, the end part of the endoscope tube being bilaterally turnable via Bowden wires, the end part being surrounded by a first dilatable ballon, a suction channel for connection to a suction pump having a diameter which is greater than the diameter of the rinsing channel extending in the endoscope tube, the suction channel also extending to the tip, and a catheter which extends beyond the tip extending in the endoscope tube, the catheter having a second dilatable balloon at its end.
Patent EP-0300251-B1 (EP)
Inventor: TIMPERI JUKKA
IPC: F04D7/04
Filed: 1988-07-01
Granted: 1994-05-04
Abstract: The present invention relates to a method and apparatus for pumping high consistency pulp, which invention is especially suitable for pumping high consistency fiber suspensions in the pulp and paper industry. One of the problems in the prior art techniques has been the difficulty of bringing high consistency pulp to the impeller of the pump or like, because high consistency pulp tends to form strong fiber network, which stops the pulp flow. A method has been developed as a solution to the problem, in which liquid is discharged from pulp during the pumping process and the liquid is fed back to the pulp to be pumped upstream of the pumping. This method is enabled by an apparatus, in which at least part of the surfaces of the pump (1) are arranged with filter surfaces (6, 7, 8, 9, 10), through which the liquid separated from pulp is returned either directly in front of the suction opening (11) of the pump (1) or to some other suitable place in the mass tower.
Patent EP-0308610-B1 (EP)
Title: Device for the withdrawal and reading of a disc-shaped record carrier leaving a compartment of a magazine
IPC: G11B17/22
Filed: 1988-07-19
Granted: 1992-05-06
Abstract: CD players in which such a device can be moved up and down in the manner of an elevator, for example by means of a drive comprising a spindle, a rack and gearwheels, or a slotted link on each side, are known. It is disadvantageous that many expensive small parts are required, such as for example gearwheels, spindles, worm wheels, racks, slotted links etc., which not only take up considerable space but also cause disturbing noises during operation. In order to reduce the expenditure on components, at the same time save space and reduce the disturbing noises, a drive is provided only on one side of the device (6), whereas on the side opposite the drive there is provided a spring (3) for supporting the device (6). CD players, video-disc players, draw-disc players, magneto-optical equipment. <IMAGE>
Patent EP-0324979-B1 (EP)
Inventor: JANDA DENNIS JOSEPH
IPC: C08G61/08
Filed: 1988-12-28
Granted: 1994-03-23
Abstract: This invention pertains to polymerization of a monomer charge containing at least one norbornene-type monomer, an optional halometal activator, a ring opening methathesis catalyst and a cocatalyst. The cocatalyst is selected from alkoxyalkylaluminums, aryloxyalkylaluminums, alkoxyalkylaluminum halides, and aryloxyalkylaluminum halides which are prepared by reacting a cocatalyst component selected from alkylaluminum halides or alkylaluminums with a branched alcohol selected from tertiary alcohols, hindered primary alcohols, hindered secondary alcohols, and mixtures thereof. The use of these branched alcohols results in a longer pot life exceeding about one-half hour, preferably exceeding two hours of the monomer charge. This invention is also directed to the composition which includes at least one monomer, optional activator, and the cocatalyst.
Patent EP-0274408-B1 (EP)
Title: Automatic thermal and speed controls for viscous fluid clutches
IPC: F16D35/00
Filed: 1988-01-05
Granted: 1992-04-29
Abstract: A pressure modulating valve (10) comprises a first movable valve element (18) operated by a thermal sensor (14) and a second movable valve element (20) having a fluid piston (22) and cooperating with the first valve element (18) to control the flow between an input pressure port (34) and an output port (26). The fluid piston (22) is exposed to the pressure (26) at the outlet of the valve (10). The second valve element (20) rides up and down axially in response to movements of the first valve element (20). The relationship between the position of the first valve element and the output pressure is dependent on the characteristics of the balancing spring (24).
Patent EP-0296695-B1 (EP)
IPC: A61K31/50
Filed: 1988-02-18
Granted: 1992-09-30
Abstract: The invention concerns a novel therapeutic agent for use in reducing raised serum uric acid levels comprising 3-(4-bromo-2-fluorobenzyl)-4-oxo-3H-phthalazin-1-ylacetic acid or a pharmaceutically acceptable salt thereof.
Patent EP-0322295-B1 (EP)
Title: Process for making a composite material with a glass-ceramic or ceramic matrix by the sol-gel process, and composite material obtained
IPC: C03C14/00
Filed: 1988-12-19
Granted: 1993-08-25
Abstract: Process for the manufacture, by a sol-gel route and compression with heating, of a composite material consisting of a fibrous reinforcement and of a vitro-ceramic or ceramic matrix based on silica. 
<??>The process of the invention is characterised in that the premature crystallisation of the matrix originating from the sol is delayed by the addition of a crystallisation-retarding agent to the sol. 
<??>This process makes it possible to obtain well-densified composite materials which have a residual porosity of less than 10%, this being done without adding new nucleating agents.
Patent EP-0338006-B1 (EP)
IPC: B65D83/08
Filed: 1987-12-10
Granted: 1993-08-04
Abstract: Un emballage pour matériaux abrasifs de préférence auto-adhésifs (1) comprend des disques ou des feuilles circulaires, qui sont fixés les uns aux autres en une unité continue pliée sur elle-même de façon à former un empilement (3), lequel est disposé de sorte que les feuilles ou les disques (1) en matériau abrasif de l'empilement (3) soient orientés avec leur face (1a) recouverte de matériau abrasif dirigée vers le haut. La présente invention se caractérise par le fait que les feuilles ou les disques (1) en matériau abrasif sont fixés les uns aux autres au moyen d'une bande de support continu (2) qui longe le côté de l'empilement (3) et qui forme des boucles entre chaque feuille ou disque de matériau abrasif. La partie supérieure (2a) de chaque boucle est fixée à la face (1b) non recouverte de matériau abrasif de la feuille ou du disque de matériau abrasif (1) qui est placé au-dessus, et la partie inférieure (2b) de chaque boucle repose librement entre la partie supérieure (2a) de la boucle et la face revêtue de matériau abrasif (1a) de la feuille ou du disque de matériau abrasif placé au-dessous.
Patent EP-0306535-B1 (EP)
Inventor: YAMAUCHI TAKASHI
IPC: G06F9/32
Filed: 1988-02-19
Granted: 1994-02-09
Abstract: Processeur pour contrôleur logique programmable effectuant des opérations logiques. Le processeur (1) comprend un organe (2) effectuant des opérations logiques, un organe inhibiteur de sauts (3), un organe de détermination des conditions de saut (4) qui détermine si l'exécution de l'instruction suivante doit être omise et si l'instruction doit être sautée, en fonction du résultat des opérations logiques, et un organe d'éxecution de saut (5). Lorsque l'organe de détermination des conditions de saut (4) détermine que l'instruction suivante ne doit pas être exécutée et devrait être sautée, l'organe d'exécution d'instruction de saut effectue le saut sans exécuter les instructions superflues, de sorte que le fonctionnement se poursuit à grande vitesse.
Patent EP-0365553-B1 (EP)
IPC: C04B35/48
Filed: 1988-05-31
Granted: 1992-08-12
Abstract: Un nouveau groupe de matériaux composites en céramique renfermant de l'oxynitrure de silicium (Si2N2O, phase O') et de l'oxyde de zirconium (ZrO2) peut être préparé par réaction thermique entre du silicate de zirconium (ZrSiO4) et de la poudre de nitrure de silicium (Si3N4) fournie totalement ou partiellement sous forme de poudre de silicium (Si) nitrurée pour donner du Si3N4 dans une atmosphère contenant de l'azote. L'adjonction d'oxyde d'aluminium ou similaire permet d'obtenir des compositions composites dont les constituants principaux sont ZrO2, la phase O' et des sialons (oxynitrures de silico-aluminium). Dans le procédé décrit, la matière pulvérulente brute est préparée par exemple par broyage et homogénéisation simultanés en vue d'obtenir une granulométrie submicronique, on lui donne, par une technique connue, la forme d'un comprimé qui est ensuite nitruré et fritté pour obtenir la densité désirée dans une atmosphère contenant de l'azote.
Patent EP-0344394-B1 (EP)
Title: Railway vehicle
IPC: B61D15/06
Filed: 1989-01-13
Granted: 1991-12-18
Abstract: In order to ensure, in a railway vehicle 2 having a tensile impact device 6, swivelably mounted on the vehicle structure 12, for a centre buffer coupling head on the uncoupled vehicle end, a constructionally simple high-quality safety collision protection which is also effective against lateral collision impacts over the entire front width of the vehicle, according to the invention an anti-telescoping bumper 16 which embraces the end of the vehicle, having a swivel protection 20 positively coupling the tensile impact device to the vehicle structure is arranged on the tensile impact device and the anti-telescoping bumper can be replaced for the coupling head by simultaneously releasing the swivel protection. <IMAGE>
Patent EP-0338188-B1 (EP)
IPC: D06N3/08
Filed: 1989-01-14
Granted: 1993-03-24
Abstract: A coated sheet-like laminate with a fine-grain surface consists of a nonwoven having a coating, a smooth knitted fabric or woven fabric being present between the coating and the nonwoven. Production is carried out by the reversal process on a release paper.
Patent EP-0328171-B1 (EP)
Inventor: DAVIDTS EMMANUEL
IPC: B65G45/00
Filed: 1989-01-16
Granted: 1994-04-13
Abstract: This invention concerns a mounting of scraper blades for conveyor belts comprising a frame on which a basic element is fixed which is integral with a shock absorbing support, characterised in that a blade carrying arm (4) constituted from an elastomer is fixed to the said shock absorbing support (5). <IMAGE>
Patent EP-0372627-B1 (EP)
IPC: C08G69/44
Filed: 1989-11-29
Granted: 1993-08-11
Abstract: Semi-aromatic copolyamides and copolyester-amides are obtained by placing an aliphatic polyamide into contact with an aromatic hydroxyacid or aminoacid, by operating at high temperature, under melting conditions, possibly in the presence of a catalyst, with a ratio of the monomer units of aliphatic polyamide to the mols of aromatic hydroxyacid or aminoacid comprised within the range of from 20:1 to 1:1. The semiaromatic copolyamides and copolyester-amides so obtained can display a thermotropic liquid-crystal behaviour as a function of their content of aromatic units linked inside the molecular chain. Their elastic modulus results to be improved relatively to the alifatic polyamides used as the starting product, and the elongation at break results to be decreased. Such semiaromatic polyamides and copolyester-amides can find application in the production of high-stiffness articles, by means of moulding or extrusion processes. They can also be used as blends with the usual thermoplastic polymers, in which they act as reinforcer or compatibilizer agents.
Patent EP-0332489-B1 (EP)
Title: Device for placing a railway vehicle on a wheel reconditioning lathe
IPC: B23B5/32
Filed: 1989-02-21
Granted: 1993-01-27
Abstract: The device comprises, for each wheel (11), an oscillating arm (5) on which are mounted the portion (7) of the rail for the passage of the vehicle above the reconditioning lathe, and two rollers (14) for driving the wheel, the said arm (5) being integrally connected to a carriage (1) which slides transversely. The displacements of the arm (5) and of the carriage (1) are coordinated so that the rollers (14) are in contact with the wheel when the rail (7) is retracted, and vice versa. The device can comprise an integrated towing system, using the same drive element as that serving for the rotation of the rollers (14), the operation of which is dependent upon the position of the carriage (1). <IMAGE>
Patent EP-0338969-B1 (EP)
Inventor: MARQUARDT ULRICH ING-GRAD
IPC: H01H9/22
Filed: 1989-04-11
Granted: 1994-10-26
Abstract: A switchgear cubicle or a switching installation has a door (7) as the termination of the installation space of a switching device (1), for example of a low-voltage power circuit breaker. A locking device (11) is used for locking the door (7) against opening when the switching device (1) is switched on. For this purpose, the locking device (11) has a locking tab (21) fitted on the inner side of the door (7) and a locking lever (12), interacting with the locking tab, which is supported such that it can pivot vertically close to a lower lateral support (5) of the switching device (1) and is movable against the effective direction of gravity, by means of an opening spring (22), into an open position. The locking device is especially suitable for installations having fixedly installed switching devices. <IMAGE>
Patent EP-0389559-B1 (EP)
Inventor: URBISH GLENN F
IPC: H04B7/26
Filed: 1988-10-17
Granted: 1995-03-08
Abstract: Cette invention concerne des enceintes de boîtiers de dispositifs électroniques, et plus particulièrement une enceinte moulée pour un récepteur radio. Les enceintes classiques de l'art antérieur nécessitent un grand nombre de pièces constitutives, et la variété de procédés et matériaux de fabrication de ces pièces constitutives augmente les coûts de production. Pour réduire le nombre total des pièces constitutives, la présente invention décrit une enceinte thermoplastique moulée (100) comprenant une base (102) et un couvercle (104) joint par une articulation (106). Des configurations de circuits imprimés soudables (102, 104, 116 et 118) sont déposées sous-vide sur les surfaces intérieure et extérieure des deux organes du boîtier d'enceinte. Les configurations des circuits imprimés sur les surfaces opposées de la base et du couvercle sont jointes par des trous traversants conducteurs (120 et 122). Les configurations des circuits imprimés sur les surfaces intérieures de la base et du couvercle sont jointes par un circuit imprimé d'interconnexion (124) qui est déposé sous-vide sur l'articulation.
Patent EP-0411041-B1 (EP)
Title: Electromechanical fuel injector
IPC: F16K31/06
Filed: 1989-04-28
Granted: 1992-02-26
Abstract: An electro-mechanical fuel injector (10) comprising: a housing (12) and valve seat (14) including a valve seating surface (16) and a metering orifice (18) disposed at a lower end (20) of the housing (12). An armature assembly (30) is movable relative to the valve seating surface (16) for opening and closing the metering orifice (18) and includes an armature (32) and a pin (34) extending therefrom and adapted to engage the seating surface (16); a coil assembly (40) and spring (46) are provided to move the armature assembly in a direction to open and close the metering orifice. The injector includes a fluid chamber (50) defined upstream of the metering orifice, in surrounding relation to a portion of the armature assembly (30). A damping assembly (60) is also provided, movable with the armature assembly (30), for generating a viscous shear damping force by interacting with the wall (64) of the chamber (50).
Patent EP-0428529-B1 (EP)
IPC: C07F7/22
Filed: 1989-06-22
Granted: 1992-08-26
Abstract: Die Erfindung betrifft neue Diorganozinn-Verbindungen, die sich von N-Cyclohexyl-N'-hydroxy-diazeniumoxid ableiten, sowie Mittel mit bakterizider und fungizider Wirkung, die als Desinfektionsmittel, Holz- und Materialschutzmittel, zur bakteriziden und fungiziden Ausrüstung von Textilien, Kunststoffen, Baustoffen oder als Biozid für Anstrichsysteme geeignet sind und diese Diorganozinn-Verbindungen als Wirkstoffe enthalten.
Patent EP-0427759-B1 (EP)
Inventor: PINES ALEXANDER
IPC: G01R33/30
Filed: 1989-08-01
Granted: 1998-10-28
Abstract: An improved NMR probe and method are described which substantially improve the resolution of NMR measurements made on powdered or amorphous or otherwise orientationally disordered samples contained within a sample holder (46). The apparatus mechanically varies the orientation of the sample such that the time average of two or more sets of spherical harmonic functions are zero.